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cond-mat.quant-gas2015★ 7 cited
Dynamical instability in the S=1 Bose-Hubbard model
Rui Asaoka, Hiroki Tsuchiura, Makoto Yamashita +1
We study the dynamical instabilities of superfluid flows in the S=1 Bose-Hubbard model. The time evolution of each spin component in a condensate is calculated based on the dynamic…
cond-mat.quant-gas2014★ 7 cited
Density Modulations Associated with the Dynamical Instability in the Bose-Hubbard Model
Rui Asaoka, Hiroki Tsuchiura, Makoto Yamashita +1
A superfluid flow beyond a critical momentum in an optical lattice decays drastically by the interplay between nonlinearity due to the interparticle interactions in Bose-Einstein c…